Massachusetts - Criteria: A (event)
| Sleepy Hollow Cemetery |
| Smith, A. C., & Co. Gas Station |
| Smith Alumnae Gymnasium |
| Smith, Arthur A., Covered Bridge |
| Smith, Bradford, Building |
| Smith Carriage Company District |
| Smith, Ellen M., Three-Decker |
| Smith, Elliot, House |
| Smith, F.W., Silver Company |
| Smith, Marshall, House |
| Smith, Perez, House |
| Smith, Samuel, Tavern Site |
| Smith's Building |
| Smith Shoe Shop |
| Smuggler's House |
| Society of the Congregational Church of Great Barrington |
| Soldiers and Sailors Memorial Building |
| Soldiers' Memorial Library |
| Somerville High School |
| Somerville Journal Building |
| Somerville Theatre |
| South Amherst Common Historic District |
| Southampton Center Historic District |
| South Boston Boat Clubs Historic District |
| Southbridge-Sargent Manufacturing District |
| Southbridge Town Hall |
| South Burying Ground |
| South Center School House |
| South Common Historic District |
| South Egremont Village Historic District |
| South Green Historic District |
| South Hadley Canal Historic District |
| South Harwich Methodist Church |
| South Hingham Historic District |
| South Junior High School |
| South Lancaster Engine House |
| South Lee Historic District |
| South Main Street School |
| South Middleborough Historic District |
| South Mountain Concert Hall |
| South School |
| South School |
| South Station Headhouse |
| South Street Historic District |
| South Swansea Union Church |
| South Union School |
| South Washington Street Historic District |
| Southwick-Daniels Farm |
| Southwick House |
| South Worthington Historic District |
| South Yarmouth/Bass River Historic District |
| Spaulding Block |
| Spicket Falls Historic District |
| Spot Pond Archeological District |
| Spring Brook Cemetery |
| Springfield Armory |
| Springfield District Court |
| Springfield Fire & Marine Insurance Co. |
| Springfield Safe Deposit and Trust Company |
| Springfield Steam Power Company Block |
| Springfield Street Historic District |
| Spring Hill Cemetery |
| Spring Hill Historic District |
| Spring Hill Historic District |
| Springside Park |
| Stacy, George O., House |
| Stafford Mills |
| Standish, Alexander, House |
| St. Anne's Church and Parish Complex |
| Stanstead, The |
| Staples-Crafts-Wiswall Farm |
| Staples, Sylvanus N., House |
| Stark Building |
| Stark, Robert M., House |
| State Lunatic Hospital at Danvers |
| State Normal Training School |
| St. Charles Borromeo Church |
| Stearns, Amos, House |
| Stearns Building |
| Stearns, R. H., House |
| Steele, John, House |
| Sterling Center Historic District |
| Stetson-Ford House |
| Stetson Hall |
| Stetson House |
| Stevens, Abiel, House |
| Stevens Linen Works Historic District |
| Stewart, Frank H., House |
| Stewart, Henry, House |
| St. George Antiochian Orthodox Church |
| St. George's Greek Orthodox Church |
| Still River Baptist Church |
| St. James Episcopal Church |
| St. John`s Catholic Church |
| St John's Congregational Church & Parsonage-Parish for Working Girls |
| St. Joseph's Church |
| St. Joseph's Church |
| St. Joseph's Convent and School |
| St. Joseph's Orphanage |
| St. Joseph's Roman Catholic Church Complex |
Data from United States Park Service and Wikidata
